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Cerca | Lliura | Ajuda | Servei de Biblioteques | Sobre el DDD | Català English Español | |||||||||
| Pàgina inicial > Articles > Articles publicats > The reproductive status determines tolerance and resistance to Mycobacterium marinum in Drosophila melanogaster |
| Data: | 2023 |
| Resum: | Sex and reproductive status of the host have a major impact on the immune response against infection. Our aim was to understand their impact on host tolerance or resistance in the systemic Mycobacterium marinum infection of Drosophila melanogaster. We measured host survival and bacillary load at time of death, as well as expression by quantitative real-time polymerase chain reaction of immune genes (diptericin and drosomycin). We also assessed the impact of metabolic and hormonal regulation in the protection against infection by measuring expression of upd3, impl2 and ecR. Our data showed increased resistance in actively mating flies and in mated females, while reducing their tolerance to infection. Data suggests that Toll and immune deficiency (Imd) pathways determine tolerance and resistance, respectively, while higher basal levels of ecR favours the stimulation of the Imd pathway. A dual role has been found for upd3 expression, linked to increased/decreased mycobacterial load at the beginning and later in infection, respectively. Finally, impl2 expression has been related to increased resistance in non-actively mating males. These results allow further assessment on the differences between sexes and highlights the role of the reproductive status in D. melanogaster to face infections, demonstrating their importance to determine resistance and tolerance against M. marinum infection. |
| Ajuts: | "la Caixa" Foundation 100010434 "la Caixa" Foundation LCF/PR/GN16/10290002 Instituto de Salud Carlos III PI20/01431 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-00500 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00920 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00934 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Matèria: | Drosophila melanogaster ; Immunity ; Sexual dimorphism ; Reproductive status ; Mycobacterial infections ; Mycobacterium marinum |
| Publicat a: | Evolution, medicine & public health, Vol. 11, Num. 1 (September 2023) , p. 332-347, ISSN 2050-6201 |
16 p, 907.3 KB |